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diff --git a/3872/CH3/EX3.5/Ex3_5.jpg b/3872/CH3/EX3.5/Ex3_5.jpg Binary files differnew file mode 100644 index 000000000..4deb837b4 --- /dev/null +++ b/3872/CH3/EX3.5/Ex3_5.jpg diff --git a/3872/CH3/EX3.5/Ex3_5.sce b/3872/CH3/EX3.5/Ex3_5.sce new file mode 100644 index 000000000..5c1e6408f --- /dev/null +++ b/3872/CH3/EX3.5/Ex3_5.sce @@ -0,0 +1,31 @@ +//Book - Power system: Analysisi & Design 5th Edition
+//Authors - J. Duncan Glover, Mulukutla S. Sarma, and Thomas J.Overbye
+//Chapter-3 ;Example 3.5
+//Scilab Version - 6.0.0; OS - Windows
+
+clc;
+clear;
+
+Eab=480 //Line voltage of star connected voltage source in Volts
+ZL=10*exp(%i*40*%pi/180) // Load impedance in Ohms
+Zl=1*exp(%i*85*%pi/180) // Line impedance between source and load in Ohms
+Sb=10 //Base power in kVA
+VbLL=480 //line to line base voltage in Volts
+
+Zb =((VbLL)^2/(Sb*1000)) //Base impedance in Ohms
+Zlpu=Zl/Zb //per unit line impedance
+ZLpu=ZL/Zb //per unit load impedance
+VbLN=VbLL/(sqrt(3)) //line to neutral base voltage in Volts
+Eanpu=(277*exp(%i*(-30)*%pi/180))/277 //source voltage in per unit
+Iapu=Eanpu/(Zlpu+ZLpu) //per unit line current in phase a
+Ib=(Sb*1000)/(sqrt(3)*VbLL) //base current in Amperes
+Ia=Iapu*Ib //actual phase a line current in Amperes
+
+printf('The magnitude of per unit line current in phase a is %.4f and its angle is %.4f degree\n',abs(Iapu),atand(imag(Iapu),real(Iapu)));
+printf('The magnitude of actual line current in phase a is %.4f Amperes and its angle is %.4f degrees\n',abs(Ia),atand(imag(Ia),real(Ia)));
+
+
+
+
+
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